diff --git a/examples/compute/shader.wgsl b/examples/compute/shader.wgsl
index 9a14f906..df541aff 100644
--- a/examples/compute/shader.wgsl
+++ b/examples/compute/shader.wgsl
@@ -1,4 +1,3 @@
-[[block]]
 struct PrimeIndices {
     data: [[stride(4)]] array<u32>;
 }; // this is used as both input and output for convenience
diff --git a/src/lib.rs b/src/lib.rs
index b4a8ca5d..9e082ddc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -48,9 +48,9 @@ impl OwnedLabel {
 }
 
 #[track_caller]
-pub fn check_error<I, E: std::fmt::Debug>(input: (I, Option<E>)) -> I {
+pub fn check_error<I, E: std::error::Error>(input: (I, Option<E>)) -> I {
     if let Some(error) = input.1 {
-        panic!("{:?}", error);
+        panic!("{}", error);
     }
 
     input.0